With overload protection on all ranges, 375 digital liquid crystal display LCD, maximum reading 3999 Maximum 450 V Range hold, continuity, diode test Builtin test leads, 2X per second sampling rate Autopower off after approximately 10 mins Operating environment 32 to 104 deg F Storage temperature 4 to 140 deg F 300 hrs typical life with carbon zinc batteries Operates from 2 LR44 batteries, included C77 booklet style carrying case and operating instructions included cULus Listed to both US and Canadian standards Meets CE requirements 414 in H x 214 in W x 12 in D